"The restrictions have been in place for roughly a month, a little bit over a month, and we certainly haven't seen any indication that there's non-compliance, in fact we've seen the reverse," Matthew Borman, U.S. Commerce Department Deputy Assistant Secretary for Export Administration, told a teleconference when asked about Asia's response.
"I think there's also a fair amount of additional self-sanctioning, if you will, by multinational companies operating in Russia," he added.
Major players know there is a significant risk to their business if they don't comply because of actions the United States could take, including fines or criminal penalties, Borman said.
"We know that Russia is quite dependent upon foreign supplies for some key inputs like semiconductors so I think it will be relatively readily apparent if there is non-compliance and the task will be to trace that back to its origin."